There are so many aircraft in this game that do not have pictures. Since almost every aircraft in history has had a picture taken of it it should not be that hard to add pictures where they are missing.
There should not be any problem adding pics of these two that makes E-2 family, E-190-E2 and E-195-E2 since there is lots of pictures taken already and those planes are already in service, hope admins will add for both.